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linux/drivers/net/wireless/orinoco.c
Andrew Morton c367c21c93 [PATCH] orinoco: limit message rate 
Brice Goglin <Brice.Goglin@ens-lyon.org> reports a printk storm from this
driver.  Fix.

Acked-by: David Gibson <hermes@gibson.dropbear.id.au>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:04:30 -07:00

4524 lines
120 KiB
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/* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
*
* A driver for Hermes or Prism 2 chipset based PCMCIA wireless
* adaptors, with Lucent/Agere, Intersil or Symbol firmware.
*
* Current maintainers (as of 29 September 2003) are:
* Pavel Roskin <proski AT gnu.org>
* and David Gibson <hermes AT gibson.dropbear.id.au>
*
* (C) Copyright David Gibson, IBM Corporation 2001-2003.
* Copyright (C) 2000 David Gibson, Linuxcare Australia.
* With some help from :
* Copyright (C) 2001 Jean Tourrilhes, HP Labs
* Copyright (C) 2001 Benjamin Herrenschmidt
*
* Based on dummy_cs.c 1.27 2000/06/12 21:27:25
*
* Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
* AT fasta.fh-dortmund.de>
* http://www.stud.fh-dortmund.de/~andy/wvlan/
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The initial developer of the original code is David A. Hinds
* <dahinds AT users.sourceforge.net>. Portions created by David
* A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights
* Reserved.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License version 2 (the "GPL"), in
* which case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use your
* version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice and
* other provisions required by the GPL. If you do not delete the
* provisions above, a recipient may use your version of this file
* under either the MPL or the GPL. */
/*
* TODO
* o Handle de-encapsulation within network layer, provide 802.11
* headers (patch from Thomas 'Dent' Mirlacher)
* o Fix possible races in SPY handling.
* o Disconnect wireless extensions from fundamental configuration.
* o (maybe) Software WEP support (patch from Stano Meduna).
* o (maybe) Use multiple Tx buffers - driver handling queue
* rather than firmware.
*/
/* Locking and synchronization:
*
* The basic principle is that everything is serialized through a
* single spinlock, priv->lock. The lock is used in user, bh and irq
* context, so when taken outside hardirq context it should always be
* taken with interrupts disabled. The lock protects both the
* hardware and the struct orinoco_private.
*
* Another flag, priv->hw_unavailable indicates that the hardware is
* unavailable for an extended period of time (e.g. suspended, or in
* the middle of a hard reset). This flag is protected by the
* spinlock. All code which touches the hardware should check the
* flag after taking the lock, and if it is set, give up on whatever
* they are doing and drop the lock again. The orinoco_lock()
* function handles this (it unlocks and returns -EBUSY if
* hw_unavailable is non-zero).
*/
#define DRIVER_NAME "orinoco"
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/netdevice.h>
#include <linux/if_arp.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
#include <net/ieee80211.h>
#include <net/ieee80211.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/system.h>
#include "hermes.h"
#include "hermes_rid.h"
#include "orinoco.h"
/********************************************************************/
/* Module information */
/********************************************************************/
MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
MODULE_LICENSE("Dual MPL/GPL");
/* Level of debugging. Used in the macros in orinoco.h */
#ifdef ORINOCO_DEBUG
int orinoco_debug = ORINOCO_DEBUG;
module_param(orinoco_debug, int, 0644);
MODULE_PARM_DESC(orinoco_debug, "Debug level");
EXPORT_SYMBOL(orinoco_debug);
#endif
static int suppress_linkstatus; /* = 0 */
module_param(suppress_linkstatus, bool, 0644);
MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
static int ignore_disconnect; /* = 0 */
module_param(ignore_disconnect, int, 0644);
MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
static int force_monitor; /* = 0 */
module_param(force_monitor, int, 0644);
MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
/********************************************************************/
/* Compile time configuration and compatibility stuff */
/********************************************************************/
/* We do this this way to avoid ifdefs in the actual code */
#ifdef WIRELESS_SPY
#define SPY_NUMBER(priv) (priv->spy_number)
#else
#define SPY_NUMBER(priv) 0
#endif /* WIRELESS_SPY */
/********************************************************************/
/* Internal constants */
/********************************************************************/
/* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
#define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
#define ORINOCO_MIN_MTU 256
#define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
#define SYMBOL_MAX_VER_LEN (14)
#define USER_BAP 0
#define IRQ_BAP 1
#define MAX_IRQLOOPS_PER_IRQ 10
#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
* how many events the
* device could
* legitimately generate */
#define SMALL_KEY_SIZE 5
#define LARGE_KEY_SIZE 13
#define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
#define DUMMY_FID 0xFFFF
/*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
HERMES_MAX_MULTICAST : 0)*/
#define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
#define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
| HERMES_EV_TX | HERMES_EV_TXEXC \
| HERMES_EV_WTERR | HERMES_EV_INFO \
| HERMES_EV_INFDROP )
#define MAX_RID_LEN 1024
static const struct iw_handler_def orinoco_handler_def;
static struct ethtool_ops orinoco_ethtool_ops;
/********************************************************************/
/* Data tables */
/********************************************************************/
/* The frequency of each channel in MHz */
static const long channel_frequency[] = {
2412, 2417, 2422, 2427, 2432, 2437, 2442,
2447, 2452, 2457, 2462, 2467, 2472, 2484
};
#define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
/* This tables gives the actual meanings of the bitrate IDs returned
* by the firmware. */
static struct {
int bitrate; /* in 100s of kilobits */
int automatic;
u16 agere_txratectrl;
u16 intersil_txratectrl;
} bitrate_table[] = {
{110, 1, 3, 15}, /* Entry 0 is the default */
{10, 0, 1, 1},
{10, 1, 1, 1},
{20, 0, 2, 2},
{20, 1, 6, 3},
{55, 0, 4, 4},
{55, 1, 7, 7},
{110, 0, 5, 8},
};
#define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
/********************************************************************/
/* Data types */
/********************************************************************/
/* Used in Event handling.
* We avoid nested structres as they break on ARM -- Moustafa */
struct hermes_tx_descriptor_802_11 {
/* hermes_tx_descriptor */
u16 status;
u16 reserved1;
u16 reserved2;
u32 sw_support;
u8 retry_count;
u8 tx_rate;
u16 tx_control;
/* ieee802_11_hdr */
u16 frame_ctl;
u16 duration_id;
u8 addr1[ETH_ALEN];
u8 addr2[ETH_ALEN];
u8 addr3[ETH_ALEN];
u16 seq_ctl;
u8 addr4[ETH_ALEN];
u16 data_len;
/* ethhdr */
unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
unsigned char h_source[ETH_ALEN]; /* source ether addr */
unsigned short h_proto; /* packet type ID field */
/* p8022_hdr */
u8 dsap;
u8 ssap;
u8 ctrl;
u8 oui[3];
u16 ethertype;
} __attribute__ ((packed));
/* Rx frame header except compatibility 802.3 header */
struct hermes_rx_descriptor {
/* Control */
u16 status;
u32 time;
u8 silence;
u8 signal;
u8 rate;
u8 rxflow;
u32 reserved;
/* 802.11 header */
u16 frame_ctl;
u16 duration_id;
u8 addr1[ETH_ALEN];
u8 addr2[ETH_ALEN];
u8 addr3[ETH_ALEN];
u16 seq_ctl;
u8 addr4[ETH_ALEN];
/* Data length */
u16 data_len;
} __attribute__ ((packed));
/********************************************************************/
/* Function prototypes */
/********************************************************************/
static int __orinoco_program_rids(struct net_device *dev);
static void __orinoco_set_multicast_list(struct net_device *dev);
/********************************************************************/
/* Internal helper functions */
/********************************************************************/
static inline void set_port_type(struct orinoco_private *priv)
{
switch (priv->iw_mode) {
case IW_MODE_INFRA:
priv->port_type = 1;
priv->createibss = 0;
break;
case IW_MODE_ADHOC:
if (priv->prefer_port3) {
priv->port_type = 3;
priv->createibss = 0;
} else {
priv->port_type = priv->ibss_port;
priv->createibss = 1;
}
break;
case IW_MODE_MONITOR:
priv->port_type = 3;
priv->createibss = 0;
break;
default:
printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
priv->ndev->name);
}
}
/********************************************************************/
/* Device methods */
/********************************************************************/
static int orinoco_open(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
int err;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = __orinoco_up(dev);
if (! err)
priv->open = 1;
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_stop(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = 0;
/* We mustn't use orinoco_lock() here, because we need to be
able to close the interface even if hw_unavailable is set
(e.g. as we're released after a PC Card removal) */
spin_lock_irq(&priv->lock);
priv->open = 0;
err = __orinoco_down(dev);
spin_unlock_irq(&priv->lock);
return err;
}
static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
return &priv->stats;
}
static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
struct iw_statistics *wstats = &priv->wstats;
int err;
unsigned long flags;
if (! netif_device_present(dev)) {
printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
dev->name);
return NULL; /* FIXME: Can we do better than this? */
}
/* If busy, return the old stats. Returning NULL may cause
* the interface to disappear from /proc/net/wireless */
if (orinoco_lock(priv, &flags) != 0)
return wstats;
/* We can't really wait for the tallies inquiry command to
* complete, so we just use the previous results and trigger
* a new tallies inquiry command for next time - Jean II */
/* FIXME: Really we should wait for the inquiry to come back -
* as it is the stats we give don't make a whole lot of sense.
* Unfortunately, it's not clear how to do that within the
* wireless extensions framework: I think we're in user
* context, but a lock seems to be held by the time we get in
* here so we're not safe to sleep here. */
hermes_inquire(hw, HERMES_INQ_TALLIES);
if (priv->iw_mode == IW_MODE_ADHOC) {
memset(&wstats->qual, 0, sizeof(wstats->qual));
/* If a spy address is defined, we report stats of the
* first spy address - Jean II */
if (SPY_NUMBER(priv)) {
wstats->qual.qual = priv->spy_stat[0].qual;
wstats->qual.level = priv->spy_stat[0].level;
wstats->qual.noise = priv->spy_stat[0].noise;
wstats->qual.updated = priv->spy_stat[0].updated;
}
} else {
struct {
u16 qual, signal, noise;
} __attribute__ ((packed)) cq;
err = HERMES_READ_RECORD(hw, USER_BAP,
HERMES_RID_COMMSQUALITY, &cq);
if (!err) {
wstats->qual.qual = (int)le16_to_cpu(cq.qual);
wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
wstats->qual.updated = 7;
}
}
orinoco_unlock(priv, &flags);
return wstats;
}
static void orinoco_set_multicast_list(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0) {
printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
"called when hw_unavailable\n", dev->name);
return;
}
__orinoco_set_multicast_list(dev);
orinoco_unlock(priv, &flags);
}
static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
{
struct orinoco_private *priv = netdev_priv(dev);
if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
return -EINVAL;
if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
(priv->nicbuf_size - ETH_HLEN) )
return -EINVAL;
dev->mtu = new_mtu;
return 0;
}
/********************************************************************/
/* Tx path */
/********************************************************************/
static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
hermes_t *hw = &priv->hw;
int err = 0;
u16 txfid = priv->txfid;
char *p;
struct ethhdr *eh;
int len, data_len, data_off;
struct hermes_tx_descriptor desc;
unsigned long flags;
TRACE_ENTER(dev->name);
if (! netif_running(dev)) {
printk(KERN_ERR "%s: Tx on stopped device!\n",
dev->name);
TRACE_EXIT(dev->name);
return 1;
}
if (netif_queue_stopped(dev)) {
printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
dev->name);
TRACE_EXIT(dev->name);
return 1;
}
if (orinoco_lock(priv, &flags) != 0) {
printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
dev->name);
TRACE_EXIT(dev->name);
return 1;
}
if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
/* Oops, the firmware hasn't established a connection,
silently drop the packet (this seems to be the
safest approach). */
stats->tx_errors++;
orinoco_unlock(priv, &flags);
dev_kfree_skb(skb);
TRACE_EXIT(dev->name);
return 0;
}
/* Check packet length, pad short packets, round up odd length */
len = max_t(int, ALIGN(skb->len, 2), ETH_ZLEN);
if (skb->len < len) {
skb = skb_padto(skb, len);
if (skb == NULL)
goto fail;
}
len -= ETH_HLEN;
eh = (struct ethhdr *)skb->data;
memset(&desc, 0, sizeof(desc));
desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
if (err) {
if (net_ratelimit())
printk(KERN_ERR "%s: Error %d writing Tx descriptor "
"to BAP\n", dev->name, err);
stats->tx_errors++;
goto fail;
}
/* Clear the 802.11 header and data length fields - some
* firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
* if this isn't done. */
hermes_clear_words(hw, HERMES_DATA0,
HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
/* Encapsulate Ethernet-II frames */
if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
struct header_struct hdr;
data_len = len;
data_off = HERMES_802_3_OFFSET + sizeof(hdr);
p = skb->data + ETH_HLEN;
/* 802.3 header */
memcpy(hdr.dest, eh->h_dest, ETH_ALEN);
memcpy(hdr.src, eh->h_source, ETH_ALEN);
hdr.len = htons(data_len + ENCAPS_OVERHEAD);
/* 802.2 header */
memcpy(&hdr.dsap, &encaps_hdr, sizeof(encaps_hdr));
hdr.ethertype = eh->h_proto;
err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
txfid, HERMES_802_3_OFFSET);
if (err) {
if (net_ratelimit())
printk(KERN_ERR "%s: Error %d writing packet "
"header to BAP\n", dev->name, err);
stats->tx_errors++;
goto fail;
}
} else { /* IEEE 802.3 frame */
data_len = len + ETH_HLEN;
data_off = HERMES_802_3_OFFSET;
p = skb->data;
}
err = hermes_bap_pwrite(hw, USER_BAP, p, data_len,
txfid, data_off);
if (err) {
printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
dev->name, err);
stats->tx_errors++;
goto fail;
}
/* Finally, we actually initiate the send */
netif_stop_queue(dev);
err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
txfid, NULL);
if (err) {
netif_start_queue(dev);
if (net_ratelimit())
printk(KERN_ERR "%s: Error %d transmitting packet\n",
dev->name, err);
stats->tx_errors++;
goto fail;
}
dev->trans_start = jiffies;
stats->tx_bytes += data_off + data_len;
orinoco_unlock(priv, &flags);
dev_kfree_skb(skb);
TRACE_EXIT(dev->name);
return 0;
fail:
TRACE_EXIT(dev->name);
orinoco_unlock(priv, &flags);
return err;
}
static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
u16 fid = hermes_read_regn(hw, ALLOCFID);
if (fid != priv->txfid) {
if (fid != DUMMY_FID)
printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
dev->name, fid);
return;
}
hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
}
static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
stats->tx_packets++;
netif_wake_queue(dev);
hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
}
static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
u16 fid = hermes_read_regn(hw, TXCOMPLFID);
struct hermes_tx_descriptor_802_11 hdr;
int err = 0;
if (fid == DUMMY_FID)
return; /* Nothing's really happened */
/* Read the frame header */
err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
sizeof(struct hermes_tx_descriptor) +
sizeof(struct ieee80211_hdr),
fid, 0);
hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
stats->tx_errors++;
if (err) {
printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
"(FID=%04X error %d)\n",
dev->name, fid, err);
return;
}
DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
err, fid);
/* We produce a TXDROP event only for retry or lifetime
* exceeded, because that's the only status that really mean
* that this particular node went away.
* Other errors means that *we* screwed up. - Jean II */
hdr.status = le16_to_cpu(hdr.status);
if (hdr.status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
union iwreq_data wrqu;
/* Copy 802.11 dest address.
* We use the 802.11 header because the frame may
* not be 802.3 or may be mangled...
* In Ad-Hoc mode, it will be the node address.
* In managed mode, it will be most likely the AP addr
* User space will figure out how to convert it to
* whatever it needs (IP address or else).
* - Jean II */
memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
wrqu.addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
}
netif_wake_queue(dev);
}
static void orinoco_tx_timeout(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
struct hermes *hw = &priv->hw;
printk(KERN_WARNING "%s: Tx timeout! "
"ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
dev->name, hermes_read_regn(hw, ALLOCFID),
hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
stats->tx_errors++;
schedule_work(&priv->reset_work);
}
/********************************************************************/
/* Rx path (data frames) */
/********************************************************************/
/* Does the frame have a SNAP header indicating it should be
* de-encapsulated to Ethernet-II? */
static inline int is_ethersnap(void *_hdr)
{
u8 *hdr = _hdr;
/* We de-encapsulate all packets which, a) have SNAP headers
* (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
* and where b) the OUI of the SNAP header is 00:00:00 or
* 00:00:f8 - we need both because different APs appear to use
* different OUIs for some reason */
return (memcmp(hdr, &encaps_hdr, 5) == 0)
&& ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
}
static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
int level, int noise)
{
struct orinoco_private *priv = netdev_priv(dev);
int i;
/* Gather wireless spy statistics: for each packet, compare the
* source address with out list, and if match, get the stats... */
for (i = 0; i < priv->spy_number; i++)
if (!memcmp(mac, priv->spy_address[i], ETH_ALEN)) {
priv->spy_stat[i].level = level - 0x95;
priv->spy_stat[i].noise = noise - 0x95;
priv->spy_stat[i].qual = (level > noise) ? (level - noise) : 0;
priv->spy_stat[i].updated = 7;
}
}
static void orinoco_stat_gather(struct net_device *dev,
struct sk_buff *skb,
struct hermes_rx_descriptor *desc)
{
struct orinoco_private *priv = netdev_priv(dev);
/* Using spy support with lots of Rx packets, like in an
* infrastructure (AP), will really slow down everything, because
* the MAC address must be compared to each entry of the spy list.
* If the user really asks for it (set some address in the
* spy list), we do it, but he will pay the price.
* Note that to get here, you need both WIRELESS_SPY
* compiled in AND some addresses in the list !!!
*/
/* Note : gcc will optimise the whole section away if
* WIRELESS_SPY is not defined... - Jean II */
if (SPY_NUMBER(priv)) {
orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
desc->signal, desc->silence);
}
}
/*
* orinoco_rx_monitor - handle received monitor frames.
*
* Arguments:
* dev network device
* rxfid received FID
* desc rx descriptor of the frame
*
* Call context: interrupt
*/
static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
struct hermes_rx_descriptor *desc)
{
u32 hdrlen = 30; /* return full header by default */
u32 datalen = 0;
u16 fc;
int err;
int len;
struct sk_buff *skb;
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
hermes_t *hw = &priv->hw;
len = le16_to_cpu(desc->data_len);
/* Determine the size of the header and the data */
fc = le16_to_cpu(desc->frame_ctl);
switch (fc & IEEE80211_FCTL_FTYPE) {
case IEEE80211_FTYPE_DATA:
if ((fc & IEEE80211_FCTL_TODS)
&& (fc & IEEE80211_FCTL_FROMDS))
hdrlen = 30;
else
hdrlen = 24;
datalen = len;
break;
case IEEE80211_FTYPE_MGMT:
hdrlen = 24;
datalen = len;
break;
case IEEE80211_FTYPE_CTL:
switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_PSPOLL:
case IEEE80211_STYPE_RTS:
case IEEE80211_STYPE_CFEND:
case IEEE80211_STYPE_CFENDACK:
hdrlen = 16;
break;
case IEEE80211_STYPE_CTS:
case IEEE80211_STYPE_ACK:
hdrlen = 10;
break;
}
break;
default:
/* Unknown frame type */
break;
}
/* sanity check the length */
if (datalen > IEEE80211_DATA_LEN + 12) {
printk(KERN_DEBUG "%s: oversized monitor frame, "
"data length = %d\n", dev->name, datalen);
err = -EIO;
stats->rx_length_errors++;
goto update_stats;
}
skb = dev_alloc_skb(hdrlen + datalen);
if (!skb) {
printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
dev->name);
err = -ENOMEM;
goto drop;
}
/* Copy the 802.11 header to the skb */
memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
skb->mac.raw = skb->data;
/* If any, copy the data from the card to the skb */
if (datalen > 0) {
err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
ALIGN(datalen, 2), rxfid,
HERMES_802_2_OFFSET);
if (err) {
printk(KERN_ERR "%s: error %d reading monitor frame\n",
dev->name, err);
goto drop;
}
}
skb->dev = dev;
skb->ip_summed = CHECKSUM_NONE;
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = __constant_htons(ETH_P_802_2);
dev->last_rx = jiffies;
stats->rx_packets++;
stats->rx_bytes += skb->len;
netif_rx(skb);
return;
drop:
dev_kfree_skb_irq(skb);
update_stats:
stats->rx_errors++;
stats->rx_dropped++;
}
static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
struct net_device_stats *stats = &priv->stats;
struct iw_statistics *wstats = &priv->wstats;
struct sk_buff *skb = NULL;
u16 rxfid, status, fc;
int length;
struct hermes_rx_descriptor desc;
struct ethhdr *hdr;
int err;
rxfid = hermes_read_regn(hw, RXFID);
err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
rxfid, 0);
if (err) {
printk(KERN_ERR "%s: error %d reading Rx descriptor. "
"Frame dropped.\n", dev->name, err);
goto update_stats;
}
status = le16_to_cpu(desc.status);
if (status & HERMES_RXSTAT_BADCRC) {
DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
dev->name);
stats->rx_crc_errors++;
goto update_stats;
}
/* Handle frames in monitor mode */
if (priv->iw_mode == IW_MODE_MONITOR) {
orinoco_rx_monitor(dev, rxfid, &desc);
return;
}
if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
dev->name);
wstats->discard.code++;
goto update_stats;
}
length = le16_to_cpu(desc.data_len);
fc = le16_to_cpu(desc.frame_ctl);
/* Sanity checks */
if (length < 3) { /* No for even an 802.2 LLC header */
/* At least on Symbol firmware with PCF we get quite a
lot of these legitimately - Poll frames with no
data. */
return;
}
if (length > IEEE80211_DATA_LEN) {
printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
dev->name, length);
stats->rx_length_errors++;
goto update_stats;
}
/* We need space for the packet data itself, plus an ethernet
header, plus 2 bytes so we can align the IP header on a
32bit boundary, plus 1 byte so we can read in odd length
packets from the card, which has an IO granularity of 16
bits */
skb = dev_alloc_skb(length+ETH_HLEN+2+1);
if (!skb) {
printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
dev->name);
goto update_stats;
}
/* We'll prepend the header, so reserve space for it. The worst
case is no decapsulation, when 802.3 header is prepended and
nothing is removed. 2 is for aligning the IP header. */
skb_reserve(skb, ETH_HLEN + 2);
err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
ALIGN(length, 2), rxfid,
HERMES_802_2_OFFSET);
if (err) {
printk(KERN_ERR "%s: error %d reading frame. "
"Frame dropped.\n", dev->name, err);
goto drop;
}
/* Handle decapsulation
* In most cases, the firmware tell us about SNAP frames.
* For some reason, the SNAP frames sent by LinkSys APs
* are not properly recognised by most firmwares.
* So, check ourselves */
if (length >= ENCAPS_OVERHEAD &&
(((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
is_ethersnap(skb->data))) {
/* These indicate a SNAP within 802.2 LLC within
802.11 frame which we'll need to de-encapsulate to
the original EthernetII frame. */
hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
} else {
/* 802.3 frame - prepend 802.3 header as is */
hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
hdr->h_proto = htons(length);
}
memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
if (fc & IEEE80211_FCTL_FROMDS)
memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
else
memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
dev->last_rx = jiffies;
skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_NONE;
if (fc & IEEE80211_FCTL_TODS)
skb->pkt_type = PACKET_OTHERHOST;
/* Process the wireless stats if needed */
orinoco_stat_gather(dev, skb, &desc);
/* Pass the packet to the networking stack */
netif_rx(skb);
stats->rx_packets++;
stats->rx_bytes += length;
return;
drop:
dev_kfree_skb_irq(skb);
update_stats:
stats->rx_errors++;
stats->rx_dropped++;
}
/********************************************************************/
/* Rx path (info frames) */
/********************************************************************/
static void print_linkstatus(struct net_device *dev, u16 status)
{
char * s;
if (suppress_linkstatus)
return;
switch (status) {
case HERMES_LINKSTATUS_NOT_CONNECTED:
s = "Not Connected";
break;
case HERMES_LINKSTATUS_CONNECTED:
s = "Connected";
break;
case HERMES_LINKSTATUS_DISCONNECTED:
s = "Disconnected";
break;
case HERMES_LINKSTATUS_AP_CHANGE:
s = "AP Changed";
break;
case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
s = "AP Out of Range";
break;
case HERMES_LINKSTATUS_AP_IN_RANGE:
s = "AP In Range";
break;
case HERMES_LINKSTATUS_ASSOC_FAILED:
s = "Association Failed";
break;
default:
s = "UNKNOWN";
}
printk(KERN_INFO "%s: New link status: %s (%04x)\n",
dev->name, s, status);
}
/* Search scan results for requested BSSID, join it if found */
static void orinoco_join_ap(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
unsigned long flags;
struct join_req {
u8 bssid[ETH_ALEN];
u16 channel;
} __attribute__ ((packed)) req;
const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
struct prism2_scan_apinfo *atom = NULL;
int offset = 4;
int found = 0;
u8 *buf;
u16 len;
/* Allocate buffer for scan results */
buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
if (! buf)
return;
if (orinoco_lock(priv, &flags) != 0)
goto out;
/* Sanity checks in case user changed something in the meantime */
if (! priv->bssid_fixed)
goto out;
if (strlen(priv->desired_essid) == 0)
goto out;
/* Read scan results from the firmware */
err = hermes_read_ltv(hw, USER_BAP,
HERMES_RID_SCANRESULTSTABLE,
MAX_SCAN_LEN, &len, buf);
if (err) {
printk(KERN_ERR "%s: Cannot read scan results\n",
dev->name);
goto out;
}
len = HERMES_RECLEN_TO_BYTES(len);
/* Go through the scan results looking for the channel of the AP
* we were requested to join */
for (; offset + atom_len <= len; offset += atom_len) {
atom = (struct prism2_scan_apinfo *) (buf + offset);
if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
found = 1;
break;
}
}
if (! found) {
DEBUG(1, "%s: Requested AP not found in scan results\n",
dev->name);
goto out;
}
memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
req.channel = atom->channel; /* both are little-endian */
err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
&req);
if (err)
printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
out:
kfree(buf);
orinoco_unlock(priv, &flags);
}
/* Send new BSSID to userspace */
static void orinoco_send_wevents(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
union iwreq_data wrqu;
int err;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return;
err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
if (err != 0)
return;
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
orinoco_unlock(priv, &flags);
}
static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
{
struct orinoco_private *priv = netdev_priv(dev);
u16 infofid;
struct {
u16 len;
u16 type;
} __attribute__ ((packed)) info;
int len, type;
int err;
/* This is an answer to an INQUIRE command that we did earlier,
* or an information "event" generated by the card
* The controller return to us a pseudo frame containing
* the information in question - Jean II */
infofid = hermes_read_regn(hw, INFOFID);
/* Read the info frame header - don't try too hard */
err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
infofid, 0);
if (err) {
printk(KERN_ERR "%s: error %d reading info frame. "
"Frame dropped.\n", dev->name, err);
return;
}
len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
type = le16_to_cpu(info.type);
switch (type) {
case HERMES_INQ_TALLIES: {
struct hermes_tallies_frame tallies;
struct iw_statistics *wstats = &priv->wstats;
if (len > sizeof(tallies)) {
printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
dev->name, len);
len = sizeof(tallies);
}
err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
infofid, sizeof(info));
if (err)
break;
/* Increment our various counters */
/* wstats->discard.nwid - no wrong BSSID stuff */
wstats->discard.code +=
le16_to_cpu(tallies.RxWEPUndecryptable);
if (len == sizeof(tallies))
wstats->discard.code +=
le16_to_cpu(tallies.RxDiscards_WEPICVError) +
le16_to_cpu(tallies.RxDiscards_WEPExcluded);
wstats->discard.misc +=
le16_to_cpu(tallies.TxDiscardsWrongSA);
wstats->discard.fragment +=
le16_to_cpu(tallies.RxMsgInBadMsgFragments);
wstats->discard.retries +=
le16_to_cpu(tallies.TxRetryLimitExceeded);
/* wstats->miss.beacon - no match */
}
break;
case HERMES_INQ_LINKSTATUS: {
struct hermes_linkstatus linkstatus;
u16 newstatus;
int connected;
if (priv->iw_mode == IW_MODE_MONITOR)
break;
if (len != sizeof(linkstatus)) {
printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
dev->name, len);
break;
}
err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
infofid, sizeof(info));
if (err)
break;
newstatus = le16_to_cpu(linkstatus.linkstatus);
/* Symbol firmware uses "out of range" to signal that
* the hostscan frame can be requested. */
if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
priv->has_hostscan && priv->scan_inprogress) {
hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
break;
}
connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
|| (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
|| (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
if (connected)
netif_carrier_on(dev);
else if (!ignore_disconnect)
netif_carrier_off(dev);
if (newstatus != priv->last_linkstatus) {
priv->last_linkstatus = newstatus;
print_linkstatus(dev, newstatus);
/* The info frame contains only one word which is the
* status (see hermes.h). The status is pretty boring
* in itself, that's why we export the new BSSID...
* Jean II */
schedule_work(&priv->wevent_work);
}
}
break;
case HERMES_INQ_SCAN:
if (!priv->scan_inprogress && priv->bssid_fixed &&
priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
schedule_work(&priv->join_work);
break;
}
/* fall through */
case HERMES_INQ_HOSTSCAN:
case HERMES_INQ_HOSTSCAN_SYMBOL: {
/* Result of a scanning. Contains information about
* cells in the vicinity - Jean II */
union iwreq_data wrqu;
unsigned char *buf;
/* Sanity check */
if (len > 4096) {
printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
dev->name, len);
break;
}
/* We are a strict producer. If the previous scan results
* have not been consumed, we just have to drop this
* frame. We can't remove the previous results ourselves,
* that would be *very* racy... Jean II */
if (priv->scan_result != NULL) {
printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
break;
}
/* Allocate buffer for results */
buf = kmalloc(len, GFP_ATOMIC);
if (buf == NULL)
/* No memory, so can't printk()... */
break;
/* Read scan data */
err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
infofid, sizeof(info));
if (err) {
kfree(buf);
break;
}
#ifdef ORINOCO_DEBUG
{
int i;
printk(KERN_DEBUG "Scan result [%02X", buf[0]);
for(i = 1; i < (len * 2); i++)
printk(":%02X", buf[i]);
printk("]\n");
}
#endif /* ORINOCO_DEBUG */
/* Allow the clients to access the results */
priv->scan_len = len;
priv->scan_result = buf;
/* Send an empty event to user space.
* We don't send the received data on the event because
* it would require us to do complex transcoding, and
* we want to minimise the work done in the irq handler
* Use a request to extract the data - Jean II */
wrqu.data.length = 0;
wrqu.data.flags = 0;
wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
}
break;
case HERMES_INQ_SEC_STAT_AGERE:
/* Security status (Agere specific) */
/* Ignore this frame for now */
if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
break;
/* fall through */
default:
printk(KERN_DEBUG "%s: Unknown information frame received: "
"type 0x%04x, length %d\n", dev->name, type, len);
/* We don't actually do anything about it */
break;
}
}
static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
{
if (net_ratelimit())
printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
}
/********************************************************************/
/* Internal hardware control routines */
/********************************************************************/
int __orinoco_up(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
netif_carrier_off(dev); /* just to make sure */
err = __orinoco_program_rids(dev);
if (err) {
printk(KERN_ERR "%s: Error %d configuring card\n",
dev->name, err);
return err;
}
/* Fire things up again */
hermes_set_irqmask(hw, ORINOCO_INTEN);
err = hermes_enable_port(hw, 0);
if (err) {
printk(KERN_ERR "%s: Error %d enabling MAC port\n",
dev->name, err);
return err;
}
netif_start_queue(dev);
return 0;
}
int __orinoco_down(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
netif_stop_queue(dev);
if (! priv->hw_unavailable) {
if (! priv->broken_disableport) {
err = hermes_disable_port(hw, 0);
if (err) {
/* Some firmwares (e.g. Intersil 1.3.x) seem
* to have problems disabling the port, oh
* well, too bad. */
printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
dev->name, err);
priv->broken_disableport = 1;
}
}
hermes_set_irqmask(hw, 0);
hermes_write_regn(hw, EVACK, 0xffff);
}
/* firmware will have to reassociate */
netif_carrier_off(dev);
priv->last_linkstatus = 0xffff;
return 0;
}
int orinoco_reinit_firmware(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
err = hermes_init(hw);
if (err)
return err;
err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
/* Try workaround for old Symbol firmware bug */
printk(KERN_WARNING "%s: firmware ALLOC bug detected "
"(old Symbol firmware?). Trying to work around... ",
dev->name);
priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
if (err)
printk("failed!\n");
else
printk("ok.\n");
}
return err;
}
static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
priv->ndev->name, priv->bitratemode);
return -EINVAL;
}
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFTXRATECONTROL,
bitrate_table[priv->bitratemode].agere_txratectrl);
break;
case FIRMWARE_TYPE_INTERSIL:
case FIRMWARE_TYPE_SYMBOL:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFTXRATECONTROL,
bitrate_table[priv->bitratemode].intersil_txratectrl);
break;
default:
BUG();
}
return err;
}
/* Set fixed AP address */
static int __orinoco_hw_set_wap(struct orinoco_private *priv)
{
int roaming_flag;
int err = 0;
hermes_t *hw = &priv->hw;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
/* not supported */
break;
case FIRMWARE_TYPE_INTERSIL:
if (priv->bssid_fixed)
roaming_flag = 2;
else
roaming_flag = 1;
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFROAMINGMODE,
roaming_flag);
break;
case FIRMWARE_TYPE_SYMBOL:
err = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
&priv->desired_bssid);
break;
}
return err;
}
/* Change the WEP keys and/or the current keys. Can be called
* either from __orinoco_hw_setup_wep() or directly from
* orinoco_ioctl_setiwencode(). In the later case the association
* with the AP is not broken (if the firmware can handle it),
* which is needed for 802.1x implementations. */
static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
err = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFWEPKEYS_AGERE,
&priv->keys);
if (err)
return err;
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFTXKEY_AGERE,
priv->tx_key);
if (err)
return err;
break;
case FIRMWARE_TYPE_INTERSIL:
case FIRMWARE_TYPE_SYMBOL:
{
int keylen;
int i;
/* Force uniform key length to work around firmware bugs */
keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
if (keylen > LARGE_KEY_SIZE) {
printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
priv->ndev->name, priv->tx_key, keylen);
return -E2BIG;
}
/* Write all 4 keys */
for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
err = hermes_write_ltv(hw, USER_BAP,
HERMES_RID_CNFDEFAULTKEY0 + i,
HERMES_BYTES_TO_RECLEN(keylen),
priv->keys[i].data);
if (err)
return err;
}
/* Write the index of the key used in transmission */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFWEPDEFAULTKEYID,
priv->tx_key);
if (err)
return err;
}
break;
}
return 0;
}
static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
int master_wep_flag;
int auth_flag;
if (priv->wep_on)
__orinoco_hw_setup_wepkeys(priv);
if (priv->wep_restrict)
auth_flag = HERMES_AUTH_SHARED_KEY;
else
auth_flag = HERMES_AUTH_OPEN;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
if (priv->wep_on) {
/* Enable the shared-key authentication. */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFAUTHENTICATION_AGERE,
auth_flag);
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFWEPENABLED_AGERE,
priv->wep_on);
if (err)
return err;
break;
case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
if (priv->wep_on) {
if (priv->wep_restrict ||
(priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
HERMES_WEP_EXCL_UNENCRYPTED;
else
master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFAUTHENTICATION,
auth_flag);
if (err)
return err;
} else
master_wep_flag = 0;
if (priv->iw_mode == IW_MODE_MONITOR)
master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
/* Master WEP setting : on/off */
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFWEPFLAGS_INTERSIL,
master_wep_flag);
if (err)
return err;
break;
}
return 0;
}
static int __orinoco_program_rids(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err;
struct hermes_idstring idbuf;
/* Set the MAC address */
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
if (err) {
printk(KERN_ERR "%s: Error %d setting MAC address\n",
dev->name, err);
return err;
}
/* Set up the link mode */
err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
priv->port_type);
if (err) {
printk(KERN_ERR "%s: Error %d setting port type\n",
dev->name, err);
return err;
}
/* Set the channel/frequency */
if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFOWNCHANNEL,
priv->channel);
if (err) {
printk(KERN_ERR "%s: Error %d setting channel %d\n",
dev->name, err, priv->channel);
return err;
}
}
if (priv->has_ibss) {
u16 createibss;
if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
printk(KERN_WARNING "%s: This firmware requires an "
"ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
/* With wvlan_cs, in this case, we would crash.
* hopefully, this driver will behave better...
* Jean II */
createibss = 0;
} else {
createibss = priv->createibss;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFCREATEIBSS,
createibss);
if (err) {
printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
dev->name, err);
return err;
}
}
/* Set the desired BSSID */
err = __orinoco_hw_set_wap(priv);
if (err) {
printk(KERN_ERR "%s: Error %d setting AP address\n",
dev->name, err);
return err;
}
/* Set the desired ESSID */
idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
/* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
&idbuf);
if (err) {
printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
dev->name, err);
return err;
}
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
&idbuf);
if (err) {
printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
dev->name, err);
return err;
}
/* Set the station name */
idbuf.len = cpu_to_le16(strlen(priv->nick));
memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
&idbuf);
if (err) {
printk(KERN_ERR "%s: Error %d setting nickname\n",
dev->name, err);
return err;
}
/* Set AP density */
if (priv->has_sensitivity) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFSYSTEMSCALE,
priv->ap_density);
if (err) {
printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
"Disabling sensitivity control\n",
dev->name, err);
priv->has_sensitivity = 0;
}
}
/* Set RTS threshold */
err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
priv->rts_thresh);
if (err) {
printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
dev->name, err);
return err;
}
/* Set fragmentation threshold or MWO robustness */
if (priv->has_mwo)
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFMWOROBUST_AGERE,
priv->mwo_robust);
else
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
priv->frag_thresh);
if (err) {
printk(KERN_ERR "%s: Error %d setting fragmentation\n",
dev->name, err);
return err;
}
/* Set bitrate */
err = __orinoco_hw_set_bitrate(priv);
if (err) {
printk(KERN_ERR "%s: Error %d setting bitrate\n",
dev->name, err);
return err;
}
/* Set power management */
if (priv->has_pm) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPMENABLED,
priv->pm_on);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFMULTICASTRECEIVE,
priv->pm_mcast);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFMAXSLEEPDURATION,
priv->pm_period);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPMHOLDOVERDURATION,
priv->pm_timeout);
if (err) {
printk(KERN_ERR "%s: Error %d setting up PM\n",
dev->name, err);
return err;
}
}
/* Set preamble - only for Symbol so far... */
if (priv->has_preamble) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPREAMBLE_SYMBOL,
priv->preamble);
if (err) {
printk(KERN_ERR "%s: Error %d setting preamble\n",
dev->name, err);
return err;
}
}
/* Set up encryption */
if (priv->has_wep) {
err = __orinoco_hw_setup_wep(priv);
if (err) {
printk(KERN_ERR "%s: Error %d activating WEP\n",
dev->name, err);
return err;
}
}
if (priv->iw_mode == IW_MODE_MONITOR) {
/* Enable monitor mode */
dev->type = ARPHRD_IEEE80211;
err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
HERMES_TEST_MONITOR, 0, NULL);
} else {
/* Disable monitor mode */
dev->type = ARPHRD_ETHER;
err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
HERMES_TEST_STOP, 0, NULL);
}
if (err)
return err;
/* Set promiscuity / multicast*/
priv->promiscuous = 0;
priv->mc_count = 0;
__orinoco_set_multicast_list(dev); /* FIXME: what about the xmit_lock */
return 0;
}
/* FIXME: return int? */
static void
__orinoco_set_multicast_list(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
int promisc, mc_count;
/* The Hermes doesn't seem to have an allmulti mode, so we go
* into promiscuous mode and let the upper levels deal. */
if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
(dev->mc_count > MAX_MULTICAST(priv)) ) {
promisc = 1;
mc_count = 0;
} else {
promisc = 0;
mc_count = dev->mc_count;
}
if (promisc != priv->promiscuous) {
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFPROMISCUOUSMODE,
promisc);
if (err) {
printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
dev->name, err);
} else
priv->promiscuous = promisc;
}
if (! promisc && (mc_count || priv->mc_count) ) {
struct dev_mc_list *p = dev->mc_list;
struct hermes_multicast mclist;
int i;
for (i = 0; i < mc_count; i++) {
/* paranoia: is list shorter than mc_count? */
BUG_ON(! p);
/* paranoia: bad address size in list? */
BUG_ON(p->dmi_addrlen != ETH_ALEN);
memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
p = p->next;
}
if (p)
printk(KERN_WARNING "%s: Multicast list is "
"longer than mc_count\n", dev->name);
err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
&mclist);
if (err)
printk(KERN_ERR "%s: Error %d setting multicast list.\n",
dev->name, err);
else
priv->mc_count = mc_count;
}
/* Since we can set the promiscuous flag when it wasn't asked
for, make sure the net_device knows about it. */
if (priv->promiscuous)
dev->flags |= IFF_PROMISC;
else
dev->flags &= ~IFF_PROMISC;
}
/* This must be called from user context, without locks held - use
* schedule_work() */
static void orinoco_reset(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
int err;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
/* When the hardware becomes available again, whatever
* detects that is responsible for re-initializing
* it. So no need for anything further */
return;
netif_stop_queue(dev);
/* Shut off interrupts. Depending on what state the hardware
* is in, this might not work, but we'll try anyway */
hermes_set_irqmask(hw, 0);
hermes_write_regn(hw, EVACK, 0xffff);
priv->hw_unavailable++;
priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
netif_carrier_off(dev);
orinoco_unlock(priv, &flags);
/* Scanning support: Cleanup of driver struct */
kfree(priv->scan_result);
priv->scan_result = NULL;
priv->scan_inprogress = 0;
if (priv->hard_reset) {
err = (*priv->hard_reset)(priv);
if (err) {
printk(KERN_ERR "%s: orinoco_reset: Error %d "
"performing hard reset\n", dev->name, err);
goto disable;
}
}
err = orinoco_reinit_firmware(dev);
if (err) {
printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
dev->name, err);
goto disable;
}
spin_lock_irq(&priv->lock); /* This has to be called from user context */
priv->hw_unavailable--;
/* priv->open or priv->hw_unavailable might have changed while
* we dropped the lock */
if (priv->open && (! priv->hw_unavailable)) {
err = __orinoco_up(dev);
if (err) {
printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
dev->name, err);
} else
dev->trans_start = jiffies;
}
spin_unlock_irq(&priv->lock);
return;
disable:
hermes_set_irqmask(hw, 0);
netif_device_detach(dev);
printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
}
/********************************************************************/
/* Interrupt handler */
/********************************************************************/
static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
{
printk(KERN_DEBUG "%s: TICK\n", dev->name);
}
static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
{
/* This seems to happen a fair bit under load, but ignoring it
seems to work fine...*/
printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
dev->name);
}
irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct net_device *dev = (struct net_device *)dev_id;
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int count = MAX_IRQLOOPS_PER_IRQ;
u16 evstat, events;
/* These are used to detect a runaway interrupt situation */
/* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
* we panic and shut down the hardware */
static int last_irq_jiffy = 0; /* jiffies value the last time
* we were called */
static int loops_this_jiffy = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0) {
/* If hw is unavailable - we don't know if the irq was
* for us or not */
return IRQ_HANDLED;
}
evstat = hermes_read_regn(hw, EVSTAT);
events = evstat & hw->inten;
if (! events) {
orinoco_unlock(priv, &flags);
return IRQ_NONE;
}
if (jiffies != last_irq_jiffy)
loops_this_jiffy = 0;
last_irq_jiffy = jiffies;
while (events && count--) {
if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
printk(KERN_WARNING "%s: IRQ handler is looping too "
"much! Resetting.\n", dev->name);
/* Disable interrupts for now */
hermes_set_irqmask(hw, 0);
schedule_work(&priv->reset_work);
break;
}
/* Check the card hasn't been removed */
if (! hermes_present(hw)) {
DEBUG(0, "orinoco_interrupt(): card removed\n");
break;
}
if (events & HERMES_EV_TICK)
__orinoco_ev_tick(dev, hw);
if (events & HERMES_EV_WTERR)
__orinoco_ev_wterr(dev, hw);
if (events & HERMES_EV_INFDROP)
__orinoco_ev_infdrop(dev, hw);
if (events & HERMES_EV_INFO)
__orinoco_ev_info(dev, hw);
if (events & HERMES_EV_RX)
__orinoco_ev_rx(dev, hw);
if (events & HERMES_EV_TXEXC)
__orinoco_ev_txexc(dev, hw);
if (events & HERMES_EV_TX)
__orinoco_ev_tx(dev, hw);
if (events & HERMES_EV_ALLOC)
__orinoco_ev_alloc(dev, hw);
hermes_write_regn(hw, EVACK, evstat);
evstat = hermes_read_regn(hw, EVSTAT);
events = evstat & hw->inten;
};
orinoco_unlock(priv, &flags);
return IRQ_HANDLED;
}
/********************************************************************/
/* Initialization */
/********************************************************************/
struct comp_id {
u16 id, variant, major, minor;
} __attribute__ ((packed));
static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
{
if (nic_id->id < 0x8000)
return FIRMWARE_TYPE_AGERE;
else if (nic_id->id == 0x8000 && nic_id->major == 0)
return FIRMWARE_TYPE_SYMBOL;
else
return FIRMWARE_TYPE_INTERSIL;
}
/* Set priv->firmware type, determine firmware properties */
static int determine_firmware(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err;
struct comp_id nic_id, sta_id;
unsigned int firmver;
char tmp[SYMBOL_MAX_VER_LEN+1];
/* Get the hardware version */
err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
if (err) {
printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
dev->name, err);
return err;
}
le16_to_cpus(&nic_id.id);
le16_to_cpus(&nic_id.variant);
le16_to_cpus(&nic_id.major);
le16_to_cpus(&nic_id.minor);
printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
dev->name, nic_id.id, nic_id.variant,
nic_id.major, nic_id.minor);
priv->firmware_type = determine_firmware_type(&nic_id);
/* Get the firmware version */
err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
if (err) {
printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
dev->name, err);
return err;
}
le16_to_cpus(&sta_id.id);
le16_to_cpus(&sta_id.variant);
le16_to_cpus(&sta_id.major);
le16_to_cpus(&sta_id.minor);
printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
dev->name, sta_id.id, sta_id.variant,
sta_id.major, sta_id.minor);
switch (sta_id.id) {
case 0x15:
printk(KERN_ERR "%s: Primary firmware is active\n",
dev->name);
return -ENODEV;
case 0x14b:
printk(KERN_ERR "%s: Tertiary firmware is active\n",
dev->name);
return -ENODEV;
case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
case 0x21: /* Symbol Spectrum24 Trilogy */
break;
default:
printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
dev->name);
break;
}
/* Default capabilities */
priv->has_sensitivity = 1;
priv->has_mwo = 0;
priv->has_preamble = 0;
priv->has_port3 = 1;
priv->has_ibss = 1;
priv->has_wep = 0;
priv->has_big_wep = 0;
/* Determine capabilities from the firmware version */
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
/* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
"Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
priv->has_ibss = (firmver >= 0x60006);
priv->has_wep = (firmver >= 0x40020);
priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
Gold cards from the others? */
priv->has_mwo = (firmver >= 0x60000);
priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
priv->ibss_port = 1;
priv->has_hostscan = (firmver >= 0x8000a);
priv->broken_monitor = (firmver >= 0x80000);
/* Tested with Agere firmware :
* 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
* Tested CableTron firmware : 4.32 => Anton */
break;
case FIRMWARE_TYPE_SYMBOL:
/* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
/* Intel MAC : 00:02:B3:* */
/* 3Com MAC : 00:50:DA:* */
memset(tmp, 0, sizeof(tmp));
/* Get the Symbol firmware version */
err = hermes_read_ltv(hw, USER_BAP,
HERMES_RID_SECONDARYVERSION_SYMBOL,
SYMBOL_MAX_VER_LEN, NULL, &tmp);
if (err) {
printk(KERN_WARNING
"%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
dev->name, err);
firmver = 0;
tmp[0] = '\0';
} else {
/* The firmware revision is a string, the format is
* something like : "V2.20-01".
* Quick and dirty parsing... - Jean II
*/
firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
| ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
| (tmp[7] - '0');
tmp[SYMBOL_MAX_VER_LEN] = '\0';
}
snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
"Symbol %s", tmp);
priv->has_ibss = (firmver >= 0x20000);
priv->has_wep = (firmver >= 0x15012);
priv->has_big_wep = (firmver >= 0x20000);
priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
(firmver >= 0x29000 && firmver < 0x30000) ||
firmver >= 0x31000;
priv->has_preamble = (firmver >= 0x20000);
priv->ibss_port = 4;
priv->broken_disableport = (firmver == 0x25013) ||
(firmver >= 0x30000 && firmver <= 0x31000);
priv->has_hostscan = (firmver >= 0x31001) ||
(firmver >= 0x29057 && firmver < 0x30000);
/* Tested with Intel firmware : 0x20015 => Jean II */
/* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
break;
case FIRMWARE_TYPE_INTERSIL:
/* D-Link, Linksys, Adtron, ZoomAir, and many others...
* Samsung, Compaq 100/200 and Proxim are slightly
* different and less well tested */
/* D-Link MAC : 00:40:05:* */
/* Addtron MAC : 00:90:D1:* */
snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
"Intersil %d.%d.%d", sta_id.major, sta_id.minor,
sta_id.variant);
firmver = ((unsigned long)sta_id.major << 16) |
((unsigned long)sta_id.minor << 8) | sta_id.variant;
priv->has_ibss = (firmver >= 0x000700); /* FIXME */
priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
priv->has_pm = (firmver >= 0x000700);
priv->has_hostscan = (firmver >= 0x010301);
if (firmver >= 0x000800)
priv->ibss_port = 0;
else {
printk(KERN_NOTICE "%s: Intersil firmware earlier "
"than v0.8.x - several features not supported\n",
dev->name);
priv->ibss_port = 1;
}
break;
}
printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
priv->fw_name);
return 0;
}
static int orinoco_init(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
struct hermes_idstring nickbuf;
u16 reclen;
int len;
TRACE_ENTER(dev->name);
/* No need to lock, the hw_unavailable flag is already set in
* alloc_orinocodev() */
priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
/* Initialize the firmware */
err = orinoco_reinit_firmware(dev);
if (err != 0) {
printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
dev->name, err);
goto out;
}
err = determine_firmware(dev);
if (err != 0) {
printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
dev->name);
goto out;
}
if (priv->has_port3)
printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
if (priv->has_ibss)
printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
dev->name);
if (priv->has_wep) {
printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
if (priv->has_big_wep)
printk("104-bit key\n");
else
printk("40-bit key\n");
}
/* Get the MAC address */
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
ETH_ALEN, NULL, dev->dev_addr);
if (err) {
printk(KERN_WARNING "%s: failed to read MAC address!\n",
dev->name);
goto out;
}
printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
dev->name, dev->dev_addr[0], dev->dev_addr[1],
dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
dev->dev_addr[5]);
/* Get the station name */
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
sizeof(nickbuf), &reclen, &nickbuf);
if (err) {
printk(KERN_ERR "%s: failed to read station name\n",
dev->name);
goto out;
}
if (nickbuf.len)
len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
else
len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
memcpy(priv->nick, &nickbuf.val, len);
priv->nick[len] = '\0';
printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
/* Get allowed channels */
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
&priv->channel_mask);
if (err) {
printk(KERN_ERR "%s: failed to read channel list!\n",
dev->name);
goto out;
}
/* Get initial AP density */
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
&priv->ap_density);
if (err || priv->ap_density < 1 || priv->ap_density > 3) {
priv->has_sensitivity = 0;
}
/* Get initial RTS threshold */
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
&priv->rts_thresh);
if (err) {
printk(KERN_ERR "%s: failed to read RTS threshold!\n",
dev->name);
goto out;
}
/* Get initial fragmentation settings */
if (priv->has_mwo)
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMWOROBUST_AGERE,
&priv->mwo_robust);
else
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
&priv->frag_thresh);
if (err) {
printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
dev->name);
goto out;
}
/* Power management setup */
if (priv->has_pm) {
priv->pm_on = 0;
priv->pm_mcast = 1;
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMAXSLEEPDURATION,
&priv->pm_period);
if (err) {
printk(KERN_ERR "%s: failed to read power management period!\n",
dev->name);
goto out;
}
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFPMHOLDOVERDURATION,
&priv->pm_timeout);
if (err) {
printk(KERN_ERR "%s: failed to read power management timeout!\n",
dev->name);
goto out;
}
}
/* Preamble setup */
if (priv->has_preamble) {
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFPREAMBLE_SYMBOL,
&priv->preamble);
if (err)
goto out;
}
/* Set up the default configuration */
priv->iw_mode = IW_MODE_INFRA;
/* By default use IEEE/IBSS ad-hoc mode if we have it */
priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
set_port_type(priv);
priv->channel = 0; /* use firmware default */
priv->promiscuous = 0;
priv->wep_on = 0;
priv->tx_key = 0;
/* Make the hardware available, as long as it hasn't been
* removed elsewhere (e.g. by PCMCIA hot unplug) */
spin_lock_irq(&priv->lock);
priv->hw_unavailable--;
spin_unlock_irq(&priv->lock);
printk(KERN_DEBUG "%s: ready\n", dev->name);
out:
TRACE_EXIT(dev->name);
return err;
}
struct net_device *alloc_orinocodev(int sizeof_card,
int (*hard_reset)(struct orinoco_private *))
{
struct net_device *dev;
struct orinoco_private *priv;
dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
if (! dev)
return NULL;
priv = netdev_priv(dev);
priv->ndev = dev;
if (sizeof_card)
priv->card = (void *)((unsigned long)priv
+ sizeof(struct orinoco_private));
else
priv->card = NULL;
/* Setup / override net_device fields */
dev->init = orinoco_init;
dev->hard_start_xmit = orinoco_xmit;
dev->tx_timeout = orinoco_tx_timeout;
dev->watchdog_timeo = HZ; /* 1 second timeout */
dev->get_stats = orinoco_get_stats;
dev->ethtool_ops = &orinoco_ethtool_ops;
dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
dev->change_mtu = orinoco_change_mtu;
dev->set_multicast_list = orinoco_set_multicast_list;
/* we use the default eth_mac_addr for setting the MAC addr */
/* Set up default callbacks */
dev->open = orinoco_open;
dev->stop = orinoco_stop;
priv->hard_reset = hard_reset;
spin_lock_init(&priv->lock);
priv->open = 0;
priv->hw_unavailable = 1; /* orinoco_init() must clear this
* before anything else touches the
* hardware */
INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
netif_carrier_off(dev);
priv->last_linkstatus = 0xffff;
return dev;
}
void free_orinocodev(struct net_device *dev)
{
struct orinoco_private *priv = netdev_priv(dev);
kfree(priv->scan_result);
free_netdev(dev);
}
/********************************************************************/
/* Wireless extensions */
/********************************************************************/
static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
char buf[IW_ESSID_MAX_SIZE+1])
{
hermes_t *hw = &priv->hw;
int err = 0;
struct hermes_idstring essidbuf;
char *p = (char *)(&essidbuf.val);
int len;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (strlen(priv->desired_essid) > 0) {
/* We read the desired SSID from the hardware rather
than from priv->desired_essid, just in case the
firmware is allowed to change it on us. I'm not
sure about this */
/* My guess is that the OWNSSID should always be whatever
* we set to the card, whereas CURRENT_SSID is the one that
* may change... - Jean II */
u16 rid;
*active = 1;
rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
HERMES_RID_CNFDESIREDSSID;
err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
NULL, &essidbuf);
if (err)
goto fail_unlock;
} else {
*active = 0;
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
sizeof(essidbuf), NULL, &essidbuf);
if (err)
goto fail_unlock;
}
len = le16_to_cpu(essidbuf.len);
BUG_ON(len > IW_ESSID_MAX_SIZE);
memset(buf, 0, IW_ESSID_MAX_SIZE+1);
memcpy(buf, p, len);
buf[len] = '\0';
fail_unlock:
orinoco_unlock(priv, &flags);
return err;
}
static long orinoco_hw_get_freq(struct orinoco_private *priv)
{
hermes_t *hw = &priv->hw;
int err = 0;
u16 channel;
long freq = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
if (err)
goto out;
/* Intersil firmware 1.3.5 returns 0 when the interface is down */
if (channel == 0) {
err = -EBUSY;
goto out;
}
if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
priv->ndev->name, channel);
err = -EBUSY;
goto out;
}
freq = channel_frequency[channel-1] * 100000;
out:
orinoco_unlock(priv, &flags);
if (err > 0)
err = -EBUSY;
return err ? err : freq;
}
static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
int *numrates, s32 *rates, int max)
{
hermes_t *hw = &priv->hw;
struct hermes_idstring list;
unsigned char *p = (unsigned char *)&list.val;
int err = 0;
int num;
int i;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
sizeof(list), NULL, &list);
orinoco_unlock(priv, &flags);
if (err)
return err;
num = le16_to_cpu(list.len);
*numrates = num;
num = min(num, max);
for (i = 0; i < num; i++) {
rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
}
return 0;
}
static int orinoco_ioctl_getname(struct net_device *dev,
struct iw_request_info *info,
char *name,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int numrates;
int err;
err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
if (!err && (numrates > 2))
strcpy(name, "IEEE 802.11b");
else
strcpy(name, "IEEE 802.11-DS");
return 0;
}
static int orinoco_ioctl_setwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *ap_addr,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* Enable automatic roaming - no sanity checks are needed */
if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
priv->bssid_fixed = 0;
memset(priv->desired_bssid, 0, ETH_ALEN);
/* "off" means keep existing connection */
if (ap_addr->sa_data[0] == 0) {
__orinoco_hw_set_wap(priv);
err = 0;
}
goto out;
}
if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
"support manual roaming\n",
dev->name);
err = -EOPNOTSUPP;
goto out;
}
if (priv->iw_mode != IW_MODE_INFRA) {
printk(KERN_WARNING "%s: Manual roaming supported only in "
"managed mode\n", dev->name);
err = -EOPNOTSUPP;
goto out;
}
/* Intersil firmware hangs without Desired ESSID */
if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
strlen(priv->desired_essid) == 0) {
printk(KERN_WARNING "%s: Desired ESSID must be set for "
"manual roaming\n", dev->name);
err = -EOPNOTSUPP;
goto out;
}
/* Finally, enable manual roaming */
priv->bssid_fixed = 1;
memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *ap_addr,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
ap_addr->sa_family = ARPHRD_ETHER;
err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
ETH_ALEN, NULL, ap_addr->sa_data);
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_setmode(struct net_device *dev,
struct iw_request_info *info,
u32 *mode,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (priv->iw_mode == *mode)
return 0;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
switch (*mode) {
case IW_MODE_ADHOC:
if (!priv->has_ibss && !priv->has_port3)
err = -EOPNOTSUPP;
break;
case IW_MODE_INFRA:
break;
case IW_MODE_MONITOR:
if (priv->broken_monitor && !force_monitor) {
printk(KERN_WARNING "%s: Monitor mode support is "
"buggy in this firmware, not enabling\n",
dev->name);
err = -EOPNOTSUPP;
}
break;
default:
err = -EOPNOTSUPP;
break;
}
if (err == -EINPROGRESS) {
priv->iw_mode = *mode;
set_port_type(priv);
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getmode(struct net_device *dev,
struct iw_request_info *info,
u32 *mode,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
*mode = priv->iw_mode;
return 0;
}
static int orinoco_ioctl_getiwrange(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = 0;
struct iw_range *range = (struct iw_range *) extra;
int numrates;
int i, k;
TRACE_ENTER(dev->name);
rrq->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = 14;
/* Set available channels/frequencies */
range->num_channels = NUM_CHANNELS;
k = 0;
for (i = 0; i < NUM_CHANNELS; i++) {
if (priv->channel_mask & (1 << i)) {
range->freq[k].i = i + 1;
range->freq[k].m = channel_frequency[i] * 100000;
range->freq[k].e = 1;
k++;
}
if (k >= IW_MAX_FREQUENCIES)
break;
}
range->num_frequency = k;
range->sensitivity = 3;
if (priv->has_wep) {
range->max_encoding_tokens = ORINOCO_MAX_KEYS;
range->encoding_size[0] = SMALL_KEY_SIZE;
range->num_encoding_sizes = 1;
if (priv->has_big_wep) {
range->encoding_size[1] = LARGE_KEY_SIZE;
range->num_encoding_sizes = 2;
}
}
if ((priv->iw_mode == IW_MODE_ADHOC) && (priv->spy_number == 0)){
/* Quality stats meaningless in ad-hoc mode */
} else {
range->max_qual.qual = 0x8b - 0x2f;
range->max_qual.level = 0x2f - 0x95 - 1;
range->max_qual.noise = 0x2f - 0x95 - 1;
/* Need to get better values */
range->avg_qual.qual = 0x24;
range->avg_qual.level = 0xC2;
range->avg_qual.noise = 0x9E;
}
err = orinoco_hw_get_bitratelist(priv, &numrates,
range->bitrate, IW_MAX_BITRATES);
if (err)
return err;
range->num_bitrates = numrates;
/* Set an indication of the max TCP throughput in bit/s that we can
* expect using this interface. May be use for QoS stuff...
* Jean II */
if (numrates > 2)
range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
else
range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
range->min_rts = 0;
range->max_rts = 2347;
range->min_frag = 256;
range->max_frag = 2346;
range->min_pmp = 0;
range->max_pmp = 65535000;
range->min_pmt = 0;
range->max_pmt = 65535 * 1000; /* ??? */
range->pmp_flags = IW_POWER_PERIOD;
range->pmt_flags = IW_POWER_TIMEOUT;
range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
range->retry_flags = IW_RETRY_LIMIT;
range->r_time_flags = IW_RETRY_LIFETIME;
range->min_retry = 0;
range->max_retry = 65535; /* ??? */
range->min_r_time = 0;
range->max_r_time = 65535 * 1000; /* ??? */
TRACE_EXIT(dev->name);
return 0;
}
static int orinoco_ioctl_setiwencode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *keybuf)
{
struct orinoco_private *priv = netdev_priv(dev);
int index = (erq->flags & IW_ENCODE_INDEX) - 1;
int setindex = priv->tx_key;
int enable = priv->wep_on;
int restricted = priv->wep_restrict;
u16 xlen = 0;
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (! priv->has_wep)
return -EOPNOTSUPP;
if (erq->pointer) {
/* We actually have a key to set - check its length */
if (erq->length > LARGE_KEY_SIZE)
return -E2BIG;
if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
return -E2BIG;
}
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (erq->pointer) {
if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
index = priv->tx_key;
/* Adjust key length to a supported value */
if (erq->length > SMALL_KEY_SIZE) {
xlen = LARGE_KEY_SIZE;
} else if (erq->length > 0) {
xlen = SMALL_KEY_SIZE;
} else
xlen = 0;
/* Switch on WEP if off */
if ((!enable) && (xlen > 0)) {
setindex = index;
enable = 1;
}
} else {
/* Important note : if the user do "iwconfig eth0 enc off",
* we will arrive there with an index of -1. This is valid
* but need to be taken care off... Jean II */
if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
if((index != -1) || (erq->flags == 0)) {
err = -EINVAL;
goto out;
}
} else {
/* Set the index : Check that the key is valid */
if(priv->keys[index].len == 0) {
err = -EINVAL;
goto out;
}
setindex = index;
}
}
if (erq->flags & IW_ENCODE_DISABLED)
enable = 0;
if (erq->flags & IW_ENCODE_OPEN)
restricted = 0;
if (erq->flags & IW_ENCODE_RESTRICTED)
restricted = 1;
if (erq->pointer) {
priv->keys[index].len = cpu_to_le16(xlen);
memset(priv->keys[index].data, 0,
sizeof(priv->keys[index].data));
memcpy(priv->keys[index].data, keybuf, erq->length);
}
priv->tx_key = setindex;
/* Try fast key change if connected and only keys are changed */
if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
netif_carrier_ok(dev)) {
err = __orinoco_hw_setup_wepkeys(priv);
/* No need to commit if successful */
goto out;
}
priv->wep_on = enable;
priv->wep_restrict = restricted;
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getiwencode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *keybuf)
{
struct orinoco_private *priv = netdev_priv(dev);
int index = (erq->flags & IW_ENCODE_INDEX) - 1;
u16 xlen = 0;
unsigned long flags;
if (! priv->has_wep)
return -EOPNOTSUPP;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
index = priv->tx_key;
erq->flags = 0;
if (! priv->wep_on)
erq->flags |= IW_ENCODE_DISABLED;
erq->flags |= index + 1;
if (priv->wep_restrict)
erq->flags |= IW_ENCODE_RESTRICTED;
else
erq->flags |= IW_ENCODE_OPEN;
xlen = le16_to_cpu(priv->keys[index].len);
erq->length = xlen;
memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
orinoco_unlock(priv, &flags);
return 0;
}
static int orinoco_ioctl_setessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *essidbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
/* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
* anyway... - Jean II */
/* Hum... Should not use Wireless Extension constant (may change),
* should use our own... - Jean II */
if (erq->length > IW_ESSID_MAX_SIZE)
return -E2BIG;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
/* If not ANY, get the new ESSID */
if (erq->flags) {
memcpy(priv->desired_essid, essidbuf, erq->length);
}
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq,
char *essidbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
int active;
int err = 0;
unsigned long flags;
TRACE_ENTER(dev->name);
if (netif_running(dev)) {
err = orinoco_hw_get_essid(priv, &active, essidbuf);
if (err)
return err;
} else {
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
orinoco_unlock(priv, &flags);
}
erq->flags = 1;
erq->length = strlen(essidbuf) + 1;
TRACE_EXIT(dev->name);
return 0;
}
static int orinoco_ioctl_setnick(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *nrq,
char *nickbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
if (nrq->length > IW_ESSID_MAX_SIZE)
return -E2BIG;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
memset(priv->nick, 0, sizeof(priv->nick));
memcpy(priv->nick, nickbuf, nrq->length);
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getnick(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *nrq,
char *nickbuf)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
orinoco_unlock(priv, &flags);
nrq->length = strlen(nickbuf)+1;
return 0;
}
static int orinoco_ioctl_setfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int chan = -1;
unsigned long flags;
int err = -EINPROGRESS; /* Call commit handler */
/* In infrastructure mode the AP sets the channel */
if (priv->iw_mode == IW_MODE_INFRA)
return -EBUSY;
if ( (frq->e == 0) && (frq->m <= 1000) ) {
/* Setting by channel number */
chan = frq->m;
} else {
/* Setting by frequency - search the table */
int mult = 1;
int i;
for (i = 0; i < (6 - frq->e); i++)
mult *= 10;
for (i = 0; i < NUM_CHANNELS; i++)
if (frq->m == (channel_frequency[i] * mult))
chan = i+1;
}
if ( (chan < 1) || (chan > NUM_CHANNELS) ||
! (priv->channel_mask & (1 << (chan-1)) ) )
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->channel = chan;
if (priv->iw_mode == IW_MODE_MONITOR) {
/* Fast channel change - no commit if successful */
hermes_t *hw = &priv->hw;
err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
HERMES_TEST_SET_CHANNEL,
chan, NULL);
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int tmp;
/* Locking done in there */
tmp = orinoco_hw_get_freq(priv);
if (tmp < 0) {
return tmp;
}
frq->m = tmp;
frq->e = 1;
return 0;
}
static int orinoco_ioctl_getsens(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
u16 val;
int err;
unsigned long flags;
if (!priv->has_sensitivity)
return -EOPNOTSUPP;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFSYSTEMSCALE, &val);
orinoco_unlock(priv, &flags);
if (err)
return err;
srq->value = val;
srq->fixed = 0; /* auto */
return 0;
}
static int orinoco_ioctl_setsens(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = srq->value;
unsigned long flags;
if (!priv->has_sensitivity)
return -EOPNOTSUPP;
if ((val < 1) || (val > 3))
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->ap_density = val;
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_setrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = rrq->value;
unsigned long flags;
if (rrq->disabled)
val = 2347;
if ( (val < 0) || (val > 2347) )
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->rts_thresh = val;
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
rrq->value = priv->rts_thresh;
rrq->disabled = (rrq->value == 2347);
rrq->fixed = 1;
return 0;
}
static int orinoco_ioctl_setfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (priv->has_mwo) {
if (frq->disabled)
priv->mwo_robust = 0;
else {
if (frq->fixed)
printk(KERN_WARNING "%s: Fixed fragmentation is "
"not supported on this firmware. "
"Using MWO robust instead.\n", dev->name);
priv->mwo_robust = 1;
}
} else {
if (frq->disabled)
priv->frag_thresh = 2346;
else {
if ( (frq->value < 256) || (frq->value > 2346) )
err = -EINVAL;
else
priv->frag_thresh = frq->value & ~0x1; /* must be even */
}
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err;
u16 val;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (priv->has_mwo) {
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMWOROBUST_AGERE,
&val);
if (err)
val = 0;
frq->value = val ? 2347 : 0;
frq->disabled = ! val;
frq->fixed = 0;
} else {
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
&val);
if (err)
val = 0;
frq->value = val;
frq->disabled = (val >= 2346);
frq->fixed = 1;
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_setrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int ratemode = -1;
int bitrate; /* 100s of kilobits */
int i;
unsigned long flags;
/* As the user space doesn't know our highest rate, it uses -1
* to ask us to set the highest rate. Test it using "iwconfig
* ethX rate auto" - Jean II */
if (rrq->value == -1)
bitrate = 110;
else {
if (rrq->value % 100000)
return -EINVAL;
bitrate = rrq->value / 100000;
}
if ( (bitrate != 10) && (bitrate != 20) &&
(bitrate != 55) && (bitrate != 110) )
return -EINVAL;
for (i = 0; i < BITRATE_TABLE_SIZE; i++)
if ( (bitrate_table[i].bitrate == bitrate) &&
(bitrate_table[i].automatic == ! rrq->fixed) ) {
ratemode = i;
break;
}
if (ratemode == -1)
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->bitratemode = ratemode;
orinoco_unlock(priv, &flags);
return -EINPROGRESS;
}
static int orinoco_ioctl_getrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
int ratemode;
int i;
u16 val;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
ratemode = priv->bitratemode;
BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
rrq->value = bitrate_table[ratemode].bitrate * 100000;
rrq->fixed = ! bitrate_table[ratemode].automatic;
rrq->disabled = 0;
/* If the interface is running we try to find more about the
current mode */
if (netif_running(dev)) {
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CURRENTTXRATE, &val);
if (err)
goto out;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
/* Note : in Lucent firmware, the return value of
* HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
* and therefore is totally different from the
* encoding of HERMES_RID_CNFTXRATECONTROL.
* Don't forget that 6Mb/s is really 5.5Mb/s */
if (val == 6)
rrq->value = 5500000;
else
rrq->value = val * 1000000;
break;
case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
for (i = 0; i < BITRATE_TABLE_SIZE; i++)
if (bitrate_table[i].intersil_txratectrl == val) {
ratemode = i;
break;
}
if (i >= BITRATE_TABLE_SIZE)
printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
dev->name, val);
rrq->value = bitrate_table[ratemode].bitrate * 100000;
break;
default:
BUG();
}
}
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_setpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *prq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = -EINPROGRESS; /* Call commit handler */
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (prq->disabled) {
priv->pm_on = 0;
} else {
switch (prq->flags & IW_POWER_MODE) {
case IW_POWER_UNICAST_R:
priv->pm_mcast = 0;
priv->pm_on = 1;
break;
case IW_POWER_ALL_R:
priv->pm_mcast = 1;
priv->pm_on = 1;
break;
case IW_POWER_ON:
/* No flags : but we may have a value - Jean II */
break;
default:
err = -EINVAL;
}
if (err)
goto out;
if (prq->flags & IW_POWER_TIMEOUT) {
priv->pm_on = 1;
priv->pm_timeout = prq->value / 1000;
}
if (prq->flags & IW_POWER_PERIOD) {
priv->pm_on = 1;
priv->pm_period = prq->value / 1000;
}
/* It's valid to not have a value if we are just toggling
* the flags... Jean II */
if(!priv->pm_on) {
err = -EINVAL;
goto out;
}
}
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *prq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
u16 enable, period, timeout, mcast;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP,
HERMES_RID_CNFMAXSLEEPDURATION, &period);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
if (err)
goto out;
prq->disabled = !enable;
/* Note : by default, display the period */
if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
prq->flags = IW_POWER_TIMEOUT;
prq->value = timeout * 1000;
} else {
prq->flags = IW_POWER_PERIOD;
prq->value = period * 1000;
}
if (mcast)
prq->flags |= IW_POWER_ALL_R;
else
prq->flags |= IW_POWER_UNICAST_R;
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rrq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
u16 short_limit, long_limit, lifetime;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
&short_limit);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
&long_limit);
if (err)
goto out;
err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
&lifetime);
if (err)
goto out;
rrq->disabled = 0; /* Can't be disabled */
/* Note : by default, display the retry number */
if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
rrq->flags = IW_RETRY_LIFETIME;
rrq->value = lifetime * 1000; /* ??? */
} else {
/* By default, display the min number */
if ((rrq->flags & IW_RETRY_MAX)) {
rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
rrq->value = long_limit;
} else {
rrq->flags = IW_RETRY_LIMIT;
rrq->value = short_limit;
if(short_limit != long_limit)
rrq->flags |= IW_RETRY_MIN;
}
}
out:
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_reset(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
if (! capable(CAP_NET_ADMIN))
return -EPERM;
if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
/* Firmware reset */
orinoco_reset(dev);
} else {
printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
schedule_work(&priv->reset_work);
}
return 0;
}
static int orinoco_ioctl_setibssport(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = *( (int *) extra );
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->ibss_port = val ;
/* Actually update the mode we are using */
set_port_type(priv);
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getibssport(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int *val = (int *) extra;
*val = priv->ibss_port;
return 0;
}
static int orinoco_ioctl_setport3(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int val = *( (int *) extra );
int err = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
switch (val) {
case 0: /* Try to do IEEE ad-hoc mode */
if (! priv->has_ibss) {
err = -EINVAL;
break;
}
priv->prefer_port3 = 0;
break;
case 1: /* Try to do Lucent proprietary ad-hoc mode */
if (! priv->has_port3) {
err = -EINVAL;
break;
}
priv->prefer_port3 = 1;
break;
default:
err = -EINVAL;
}
if (! err) {
/* Actually update the mode we are using */
set_port_type(priv);
err = -EINPROGRESS;
}
orinoco_unlock(priv, &flags);
return err;
}
static int orinoco_ioctl_getport3(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int *val = (int *) extra;
*val = priv->prefer_port3;
return 0;
}
static int orinoco_ioctl_setpreamble(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
unsigned long flags;
int val;
if (! priv->has_preamble)
return -EOPNOTSUPP;
/* 802.11b has recently defined some short preamble.
* Basically, the Phy header has been reduced in size.
* This increase performance, especially at high rates
* (the preamble is transmitted at 1Mb/s), unfortunately
* this give compatibility troubles... - Jean II */
val = *( (int *) extra );
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
if (val)
priv->preamble = 1;
else
priv->preamble = 0;
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
static int orinoco_ioctl_getpreamble(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int *val = (int *) extra;
if (! priv->has_preamble)
return -EOPNOTSUPP;
*val = priv->preamble;
return 0;
}
/* ioctl interface to hermes_read_ltv()
* To use with iwpriv, pass the RID as the token argument, e.g.
* iwpriv get_rid [0xfc00]
* At least Wireless Tools 25 is required to use iwpriv.
* For Wireless Tools 25 and 26 append "dummy" are the end. */
static int orinoco_ioctl_getrid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int rid = data->flags;
u16 length;
int err;
unsigned long flags;
/* It's a "get" function, but we don't want users to access the
* WEP key and other raw firmware data */
if (! capable(CAP_NET_ADMIN))
return -EPERM;
if (rid < 0xfc00 || rid > 0xffff)
return -EINVAL;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
extra);
if (err)
goto out;
data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
MAX_RID_LEN);
out:
orinoco_unlock(priv, &flags);
return err;
}
/* Spy is used for link quality/strength measurements in Ad-Hoc mode
* Jean II */
static int orinoco_ioctl_setspy(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
struct sockaddr *address = (struct sockaddr *) extra;
int number = srq->length;
int i;
unsigned long flags;
/* Make sure nobody mess with the structure while we do */
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* orinoco_lock() doesn't disable interrupts, so make sure the
* interrupt rx path don't get confused while we copy */
priv->spy_number = 0;
if (number > 0) {
/* Extract the addresses */
for (i = 0; i < number; i++)
memcpy(priv->spy_address[i], address[i].sa_data,
ETH_ALEN);
/* Reset stats */
memset(priv->spy_stat, 0,
sizeof(struct iw_quality) * IW_MAX_SPY);
/* Set number of addresses */
priv->spy_number = number;
}
/* Now, let the others play */
orinoco_unlock(priv, &flags);
/* Do NOT call commit handler */
return 0;
}
static int orinoco_ioctl_getspy(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
struct sockaddr *address = (struct sockaddr *) extra;
int number;
int i;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
number = priv->spy_number;
/* Create address struct */
for (i = 0; i < number; i++) {
memcpy(address[i].sa_data, priv->spy_address[i], ETH_ALEN);
address[i].sa_family = AF_UNIX;
}
if (number > 0) {
/* Create address struct */
for (i = 0; i < number; i++) {
memcpy(address[i].sa_data, priv->spy_address[i],
ETH_ALEN);
address[i].sa_family = AF_UNIX;
}
/* Copy stats */
/* In theory, we should disable irqs while copying the stats
* because the rx path might update it in the middle...
* Bah, who care ? - Jean II */
memcpy(extra + (sizeof(struct sockaddr) * number),
priv->spy_stat, sizeof(struct iw_quality) * number);
}
/* Reset updated flags. */
for (i = 0; i < number; i++)
priv->spy_stat[i].updated = 0;
orinoco_unlock(priv, &flags);
srq->length = number;
return 0;
}
/* Trigger a scan (look for other cells in the vicinity */
static int orinoco_ioctl_setscan(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
hermes_t *hw = &priv->hw;
int err = 0;
unsigned long flags;
/* Note : you may have realised that, as this is a SET operation,
* this is priviledged and therefore a normal user can't
* perform scanning.
* This is not an error, while the device perform scanning,
* traffic doesn't flow, so it's a perfect DoS...
* Jean II */
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* Scanning with port 0 disabled would fail */
if (!netif_running(dev)) {
err = -ENETDOWN;
goto out;
}
/* In monitor mode, the scan results are always empty.
* Probe responses are passed to the driver as received
* frames and could be processed in software. */
if (priv->iw_mode == IW_MODE_MONITOR) {
err = -EOPNOTSUPP;
goto out;
}
/* Note : because we don't lock out the irq handler, the way
* we access scan variables in priv is critical.
* o scan_inprogress : not touched by irq handler
* o scan_mode : not touched by irq handler
* o scan_result : irq is strict producer, non-irq is strict
* consumer.
* o scan_len : synchronised with scan_result
* Before modifying anything on those variables, please think hard !
* Jean II */
/* If there is still some left-over scan results, get rid of it */
if (priv->scan_result != NULL) {
/* What's likely is that a client did crash or was killed
* between triggering the scan request and reading the
* results, so we need to reset everything.
* Some clients that are too slow may suffer from that...
* Jean II */
kfree(priv->scan_result);
priv->scan_result = NULL;
}
/* Save flags */
priv->scan_mode = srq->flags;
/* Always trigger scanning, even if it's in progress.
* This way, if the info frame get lost, we will recover somewhat
* gracefully - Jean II */
if (priv->has_hostscan) {
switch (priv->firmware_type) {
case FIRMWARE_TYPE_SYMBOL:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFHOSTSCAN_SYMBOL,
HERMES_HOSTSCAN_SYMBOL_ONCE |
HERMES_HOSTSCAN_SYMBOL_BCAST);
break;
case FIRMWARE_TYPE_INTERSIL: {
u16 req[3];
req[0] = cpu_to_le16(0x3fff); /* All channels */
req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
req[2] = 0; /* Any ESSID */
err = HERMES_WRITE_RECORD(hw, USER_BAP,
HERMES_RID_CNFHOSTSCAN, &req);
}
break;
case FIRMWARE_TYPE_AGERE:
err = hermes_write_wordrec(hw, USER_BAP,
HERMES_RID_CNFSCANSSID_AGERE,
0); /* Any ESSID */
if (err)
break;
err = hermes_inquire(hw, HERMES_INQ_SCAN);
break;
}
} else
err = hermes_inquire(hw, HERMES_INQ_SCAN);
/* One more client */
if (! err)
priv->scan_inprogress = 1;
out:
orinoco_unlock(priv, &flags);
return err;
}
/* Translate scan data returned from the card to a card independant
* format that the Wireless Tools will understand - Jean II
* Return message length or -errno for fatal errors */
static inline int orinoco_translate_scan(struct net_device *dev,
char *buffer,
char *scan,
int scan_len)
{
struct orinoco_private *priv = netdev_priv(dev);
int offset; /* In the scan data */
union hermes_scan_info *atom;
int atom_len;
u16 capabilities;
u16 channel;
struct iw_event iwe; /* Temporary buffer */
char * current_ev = buffer;
char * end_buf = buffer + IW_SCAN_MAX_DATA;
switch (priv->firmware_type) {
case FIRMWARE_TYPE_AGERE:
atom_len = sizeof(struct agere_scan_apinfo);
offset = 0;
break;
case FIRMWARE_TYPE_SYMBOL:
/* Lack of documentation necessitates this hack.
* Different firmwares have 68 or 76 byte long atoms.
* We try modulo first. If the length divides by both,
* we check what would be the channel in the second
* frame for a 68-byte atom. 76-byte atoms have 0 there.
* Valid channel cannot be 0. */
if (scan_len % 76)
atom_len = 68;
else if (scan_len % 68)
atom_len = 76;
else if (scan_len >= 1292 && scan[68] == 0)
atom_len = 76;
else
atom_len = 68;
offset = 0;
break;
case FIRMWARE_TYPE_INTERSIL:
offset = 4;
if (priv->has_hostscan) {
atom_len = le16_to_cpup((u16 *)scan);
/* Sanity check for atom_len */
if (atom_len < sizeof(struct prism2_scan_apinfo)) {
printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
dev->name, atom_len);
return -EIO;
}
} else
atom_len = offsetof(struct prism2_scan_apinfo, atim);
break;
default:
return -EOPNOTSUPP;
}
/* Check that we got an whole number of atoms */
if ((scan_len - offset) % atom_len) {
printk(KERN_ERR "%s: Unexpected scan data length %d, "
"atom_len %d, offset %d\n", dev->name, scan_len,
atom_len, offset);
return -EIO;
}
/* Read the entries one by one */
for (; offset + atom_len <= scan_len; offset += atom_len) {
/* Get next atom */
atom = (union hermes_scan_info *) (scan + offset);
/* First entry *MUST* be the AP MAC address */
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
/* Other entries will be displayed in the order we give them */
/* Add the ESSID */
iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
if (iwe.u.data.length > 32)
iwe.u.data.length = 32;
iwe.cmd = SIOCGIWESSID;
iwe.u.data.flags = 1;
current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
/* Add mode */
iwe.cmd = SIOCGIWMODE;
capabilities = le16_to_cpu(atom->a.capabilities);
if (capabilities & 0x3) {
if (capabilities & 0x1)
iwe.u.mode = IW_MODE_MASTER;
else
iwe.u.mode = IW_MODE_ADHOC;
current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
}
channel = atom->s.channel;
if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
/* Add frequency */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = channel_frequency[channel-1] * 100000;
iwe.u.freq.e = 1;
current_ev = iwe_stream_add_event(current_ev, end_buf,
&iwe, IW_EV_FREQ_LEN);
}
/* Add quality statistics */
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = 0x10; /* no link quality */
iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
/* Wireless tools prior to 27.pre22 will show link quality
* anyway, so we provide a reasonable value. */
if (iwe.u.qual.level > iwe.u.qual.noise)
iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
else
iwe.u.qual.qual = 0;
current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
/* Add encryption capability */
iwe.cmd = SIOCGIWENCODE;
if (capabilities & 0x10)
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
iwe.u.data.length = 0;
current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
/* Bit rate is not available in Lucent/Agere firmwares */
if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
char * current_val = current_ev + IW_EV_LCP_LEN;
int i;
int step;
if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
step = 2;
else
step = 1;
iwe.cmd = SIOCGIWRATE;
/* Those two flags are ignored... */
iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
/* Max 10 values */
for (i = 0; i < 10; i += step) {
/* NULL terminated */
if (atom->p.rates[i] == 0x0)
break;
/* Bit rate given in 500 kb/s units (+ 0x80) */
iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
current_val = iwe_stream_add_value(current_ev, current_val,
end_buf, &iwe,
IW_EV_PARAM_LEN);
}
/* Check if we added any event */
if ((current_val - current_ev) > IW_EV_LCP_LEN)
current_ev = current_val;
}
/* The other data in the scan result are not really
* interesting, so for now drop it - Jean II */
}
return current_ev - buffer;
}
/* Return results of a scan */
static int orinoco_ioctl_getscan(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *srq,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
int err = 0;
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
/* If no results yet, ask to try again later */
if (priv->scan_result == NULL) {
if (priv->scan_inprogress)
/* Important note : we don't want to block the caller
* until results are ready for various reasons.
* First, managing wait queues is complex and racy.
* Second, we grab some rtnetlink lock before comming
* here (in dev_ioctl()).
* Third, we generate an Wireless Event, so the
* caller can wait itself on that - Jean II */
err = -EAGAIN;
else
/* Client error, no scan results...
* The caller need to restart the scan. */
err = -ENODATA;
} else {
/* We have some results to push back to user space */
/* Translate to WE format */
int ret = orinoco_translate_scan(dev, extra,
priv->scan_result,
priv->scan_len);
if (ret < 0) {
err = ret;
kfree(priv->scan_result);
priv->scan_result = NULL;
} else {
srq->length = ret;
/* Return flags */
srq->flags = (__u16) priv->scan_mode;
/* In any case, Scan results will be cleaned up in the
* reset function and when exiting the driver.
* The person triggering the scanning may never come to
* pick the results, so we need to do it in those places.
* Jean II */
#ifdef SCAN_SINGLE_READ
/* If you enable this option, only one client (the first
* one) will be able to read the result (and only one
* time). If there is multiple concurent clients that
* want to read scan results, this behavior is not
* advisable - Jean II */
kfree(priv->scan_result);
priv->scan_result = NULL;
#endif /* SCAN_SINGLE_READ */
/* Here, if too much time has elapsed since last scan,
* we may want to clean up scan results... - Jean II */
}
/* Scan is no longer in progress */
priv->scan_inprogress = 0;
}
orinoco_unlock(priv, &flags);
return err;
}
/* Commit handler, called after set operations */
static int orinoco_ioctl_commit(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = netdev_priv(dev);
struct hermes *hw = &priv->hw;
unsigned long flags;
int err = 0;
if (!priv->open)
return 0;
if (priv->broken_disableport) {
orinoco_reset(dev);
return 0;
}
if (orinoco_lock(priv, &flags) != 0)
return err;
err = hermes_disable_port(hw, 0);
if (err) {
printk(KERN_WARNING "%s: Unable to disable port "
"while reconfiguring card\n", dev->name);
priv->broken_disableport = 1;
goto out;
}
err = __orinoco_program_rids(dev);
if (err) {
printk(KERN_WARNING "%s: Unable to reconfigure card\n",
dev->name);
goto out;
}
err = hermes_enable_port(hw, 0);
if (err) {
printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
dev->name);
goto out;
}
out:
if (err) {
printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
schedule_work(&priv->reset_work);
err = 0;
}
orinoco_unlock(priv, &flags);
return err;
}
static const struct iw_priv_args orinoco_privtab[] = {
{ SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
{ SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
{ SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0, "set_port3" },
{ SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_port3" },
{ SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0, "set_preamble" },
{ SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_preamble" },
{ SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0, "set_ibssport" },
{ SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_ibssport" },
{ SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
"get_rid" },
};
/*
* Structures to export the Wireless Handlers
*/
static const iw_handler orinoco_handler[] = {
[SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
[SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
[SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
[SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
[SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
[SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
[SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
[SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
[SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
[SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setspy,
[SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getspy,
[SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
[SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
[SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
[SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
[SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
[SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
[SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
[SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
[SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
[SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
[SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
[SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
[SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
[SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
[SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
[SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
[SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
[SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
[SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
};
/*
Added typecasting since we no longer use iwreq_data -- Moustafa
*/
static const iw_handler orinoco_private_handler[] = {
[0] = (iw_handler) orinoco_ioctl_reset,
[1] = (iw_handler) orinoco_ioctl_reset,
[2] = (iw_handler) orinoco_ioctl_setport3,
[3] = (iw_handler) orinoco_ioctl_getport3,
[4] = (iw_handler) orinoco_ioctl_setpreamble,
[5] = (iw_handler) orinoco_ioctl_getpreamble,
[6] = (iw_handler) orinoco_ioctl_setibssport,
[7] = (iw_handler) orinoco_ioctl_getibssport,
[9] = (iw_handler) orinoco_ioctl_getrid,
};
static const struct iw_handler_def orinoco_handler_def = {
.num_standard = ARRAY_SIZE(orinoco_handler),
.num_private = ARRAY_SIZE(orinoco_private_handler),
.num_private_args = ARRAY_SIZE(orinoco_privtab),
.standard = orinoco_handler,
.private = orinoco_private_handler,
.private_args = orinoco_privtab,
.get_wireless_stats = orinoco_get_wireless_stats,
};
static void orinoco_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct orinoco_private *priv = netdev_priv(dev);
strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
if (dev->class_dev.dev)
strncpy(info->bus_info, dev->class_dev.dev->bus_id,
sizeof(info->bus_info) - 1);
else
snprintf(info->bus_info, sizeof(info->bus_info) - 1,
"PCMCIA %p", priv->hw.iobase);
}
static struct ethtool_ops orinoco_ethtool_ops = {
.get_drvinfo = orinoco_get_drvinfo,
.get_link = ethtool_op_get_link,
};
/********************************************************************/
/* Debugging */
/********************************************************************/
#if 0
static void show_rx_frame(struct orinoco_rxframe_hdr *frame)
{
printk(KERN_DEBUG "RX descriptor:\n");
printk(KERN_DEBUG " status = 0x%04x\n", frame->desc.status);
printk(KERN_DEBUG " time = 0x%08x\n", frame->desc.time);
printk(KERN_DEBUG " silence = 0x%02x\n", frame->desc.silence);
printk(KERN_DEBUG " signal = 0x%02x\n", frame->desc.signal);
printk(KERN_DEBUG " rate = 0x%02x\n", frame->desc.rate);
printk(KERN_DEBUG " rxflow = 0x%02x\n", frame->desc.rxflow);
printk(KERN_DEBUG " reserved = 0x%08x\n", frame->desc.reserved);
printk(KERN_DEBUG "IEEE 802.11 header:\n");
printk(KERN_DEBUG " frame_ctl = 0x%04x\n",
frame->p80211.frame_ctl);
printk(KERN_DEBUG " duration_id = 0x%04x\n",
frame->p80211.duration_id);
printk(KERN_DEBUG " addr1 = %02x:%02x:%02x:%02x:%02x:%02x\n",
frame->p80211.addr1[0], frame->p80211.addr1[1],
frame->p80211.addr1[2], frame->p80211.addr1[3],
frame->p80211.addr1[4], frame->p80211.addr1[5]);
printk(KERN_DEBUG " addr2 = %02x:%02x:%02x:%02x:%02x:%02x\n",
frame->p80211.addr2[0], frame->p80211.addr2[1],
frame->p80211.addr2[2], frame->p80211.addr2[3],
frame->p80211.addr2[4], frame->p80211.addr2[5]);
printk(KERN_DEBUG " addr3 = %02x:%02x:%02x:%02x:%02x:%02x\n",
frame->p80211.addr3[0], frame->p80211.addr3[1],
frame->p80211.addr3[2], frame->p80211.addr3[3],
frame->p80211.addr3[4], frame->p80211.addr3[5]);
printk(KERN_DEBUG " seq_ctl = 0x%04x\n",
frame->p80211.seq_ctl);
printk(KERN_DEBUG " addr4 = %02x:%02x:%02x:%02x:%02x:%02x\n",
frame->p80211.addr4[0], frame->p80211.addr4[1],
frame->p80211.addr4[2], frame->p80211.addr4[3],
frame->p80211.addr4[4], frame->p80211.addr4[5]);
printk(KERN_DEBUG " data_len = 0x%04x\n",
frame->p80211.data_len);
printk(KERN_DEBUG "IEEE 802.3 header:\n");
printk(KERN_DEBUG " dest = %02x:%02x:%02x:%02x:%02x:%02x\n",
frame->p8023.h_dest[0], frame->p8023.h_dest[1],
frame->p8023.h_dest[2], frame->p8023.h_dest[3],
frame->p8023.h_dest[4], frame->p8023.h_dest[5]);
printk(KERN_DEBUG " src = %02x:%02x:%02x:%02x:%02x:%02x\n",
frame->p8023.h_source[0], frame->p8023.h_source[1],
frame->p8023.h_source[2], frame->p8023.h_source[3],
frame->p8023.h_source[4], frame->p8023.h_source[5]);
printk(KERN_DEBUG " len = 0x%04x\n", frame->p8023.h_proto);
printk(KERN_DEBUG "IEEE 802.2 LLC/SNAP header:\n");
printk(KERN_DEBUG " DSAP = 0x%02x\n", frame->p8022.dsap);
printk(KERN_DEBUG " SSAP = 0x%02x\n", frame->p8022.ssap);
printk(KERN_DEBUG " ctrl = 0x%02x\n", frame->p8022.ctrl);
printk(KERN_DEBUG " OUI = %02x:%02x:%02x\n",
frame->p8022.oui[0], frame->p8022.oui[1], frame->p8022.oui[2]);
printk(KERN_DEBUG " ethertype = 0x%04x\n", frame->ethertype);
}
#endif /* 0 */
/********************************************************************/
/* Module initialization */
/********************************************************************/
EXPORT_SYMBOL(alloc_orinocodev);
EXPORT_SYMBOL(free_orinocodev);
EXPORT_SYMBOL(__orinoco_up);
EXPORT_SYMBOL(__orinoco_down);
EXPORT_SYMBOL(orinoco_reinit_firmware);
EXPORT_SYMBOL(orinoco_interrupt);
/* Can't be declared "const" or the whole __initdata section will
* become const */
static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
" (David Gibson <hermes@gibson.dropbear.id.au>, "
"Pavel Roskin <proski@gnu.org>, et al)";
static int __init init_orinoco(void)
{
printk(KERN_DEBUG "%s\n", version);
return 0;
}
static void __exit exit_orinoco(void)
{
}
module_init(init_orinoco);
module_exit(exit_orinoco);
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